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TaxDollarData

Discretionary Spending

Federal spending that Congress controls through annual appropriations — covering defense, education, transportation, and other agency budgets.

How It Works

Discretionary spending accounts for about one-third of total federal spending. It includes everything Congress appropriates each year: defense spending (about half of discretionary), domestic agencies, infrastructure, scientific research, and foreign aid. Defense discretionary spending exceeded $850 billion in FY2023, while non-defense discretionary was about $900 billion. Discretionary spending is distinct from mandatory spending (Social Security, Medicare, Medicaid), which runs on autopilot under existing law.

Related Terms

  • Mandatory SpendingFederal spending required by existing law without annual Congressional approval — primarily Social Security, Medicare, Medicaid, and interest on the debt.
  • AppropriationA law passed by Congress that authorizes federal agencies to spend a specific amount of money for a specific purpose during a defined period.
  • Defense SpendingThe portion of the federal budget dedicated to national defense — including military personnel, weapons systems, operations, and maintenance — totaling over $850 billion annually.

About This Definition

This definition is part of the TaxDollarData Federal Spending Glossary31 terms explaining how the U.S. government spends taxpayer money. All definitions are written in plain language for taxpayers, journalists, contractors, and researchers.